Coolgear 7 port USB 3.0 Industrial Hub with 350 Watt Surge Protection and 15KV ESD protection, integrated Mounting brackets, 12V 3amp Power Supply Included. The CG-7U3DS is a 7-Port USB 3.0 Hub that complies with the Universal Serial Bus 3.0 (USB 3.0) Specifications Revision 1.0 and performs at up to 5Gbps Super-Speed. It provides 7 downstream facing ports with standard Type-A USB 3.0 connectors. The hub also With built-in RISC-like USB 3.0 controller chips, it is backward compatible either when any one of the downstream port is connected to a USB 1.1 or USB 2.0 compliant device, or when the upstream port is connected to a USB 1.1 or USB 3.0 compliant host. The CG-7U3DS also provides a unique feature to work in the bus-powered mode without an external AC power adapter. Its very convenient for light power consumption USB devices to work in this mode without an extra power supply. The external DC jack is used USB Devices Supported examples: Supports keyboard, mouse, monitor, scanner, printer, PC Camera, telephone, CD-ROM drive, Pen-drives, SATA enclosures, joystick, virtual reality helmet, modem, PBX and many more. Operating Temperature: 0 to 55 C (32 to 131 F), 10% to 90% relative humidity (non-condensing)